StarCraft 2....WTF!!!

I happened to get a StarCraft 2 beta key from a friend yesterday and I've been playing last night and this morning.  WTF!?!?  I seriously cannot be this bad at StarCraft 2 online.  I'm getting raped by everyone I play online.  Supposedly this game pairs you up with someone of "equal skill" for your first 5 matches before it dumps you into the random populace of the game.  What...fucking....ever!!   I've played 4 matches and each one ends with me rage quitting because either jerkface mcgee comes rolling in with 8 carriers like 10 minutes after we started and I have absolutely no air support or he rolls in with like 2000 units (estimate) and I have like 5.

There is absolutely no way these people are just getting online for the first time.  They know the tech tree WAY too well, know the exact way they need to build up their army in the shortest time possible and are probably Korean.  ARGH!  So frustrating, but I love playing...so I'm going back to getting my ass handed to me.